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Royal 700L Ch= 7AT43Z1

Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2014320) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2014322) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2014323) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2014324) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2014326) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2014327) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 702433) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 702434) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 702435) Radio
 
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 702436) Radio
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2051341) Radio Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2051342) Radio
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2051343) Radio Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 702432) Radio
Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 1365686) Radio
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Royal 700L Ch= 7AT43Z1; Zenith Radio Corp.; (ID = 2051341) Radio
Zenith Radio Corp.;: Royal 700L Ch= 7AT43Z1 [Radio] ID = 2051341 1400x1072
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For model Royal 700L Ch= 7AT43Z1, Zenith Radio Corp.; Chicago, IL
 
Country:  United States of America (USA)
Manufacturer / Brand:  Zenith Radio Corp.; Chicago, IL
alternative name
 
Chicago Radio Lab
Year: 1958/1959 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) 7: 2N252 2N485 2N253 2N254 2N362 2N362 2N362 1N87G
Main principle Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
Tuned circuits 5 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Dry Batteries / "C": 4 x 1.5 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
Power out 0.275 W (0.4 W max.)
from Radiomuseum.org Model: Royal 700L Ch= 7AT43Z1 - Zenith Radio Corp.; Chicago,
Material Leather / canvas / plastic - over other material
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 8.125 x 5.25 x 3.25 inch / 206 x 133 x 83 mm
Notes

The Zenith Royal 700L is a portable, battery operated 7 transistor AM band radio.  The AM band frequency tuning range is 540 to 1600kHz.  Has push-pull audio output stage and earphone jack that disconnects the speaker for private listening.  Was available with either a brown or black leather case.

Transistor shortages in the late 1950's from the transistor manufacturers forced Zenith to have slightly different designs using different chassis with transistors from 3 different manufacturers.

Model Chassis

Transistor Manufacturer

Chassis Dot and Transistor Label Color
Royal 700L 7AT43 All transistors from Sylvania Red
Royal 700L 7AT43Z3 Output transistors from RCA, all others from Sylvania Green
Royal 700L 7AT43Z1 All transistors from Texas Instruments Blue
Literature/Schematics (1) Photofact Folder, Howard W. SAMS (Date 5-59, Set 441, Folder 20)

Model page created by Egon Penker. See "Data change" for further contributors.



All listed radios etc. from Zenith Radio Corp.; Chicago, IL
Here you find 4278 models, 3897 with images and 3389 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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